Firewall Wizards mailing list archives
Re: how to block ICMP tunneling?
From: Ted Doty <ted () iss net>
Date: Sat, 17 Jul 1999 09:50:43 -0400
At 12:07 PM 7/16/99 -0400, Razvan Peteanu wrote:
BO2K has the ability to use ICMP tunneling for its traffic so I'm interested in what types of ICMP messages should be blocked to prevent this traffic.
This is unclear, since the BO2K tunneling over ICMP is not working yet (at least in the version I've seen). However, since BO2K is open source, you should expect this to mutate. - Ted ----------------------------------------------------------------------- Ted Doty, Internet Security Systems | Phone: +1 678 443-6000 6600 Peachtree Dunwoody Road, 300 Embassy Row | Fax: +1 678 443-6479 Atlanta, GA 30328 USA | Web: http://www.iss.net ----------------------------------------------------------------------- PGP key fingerprint: 362A EAC7 9E08 1689 FD0F E625 D525 E1BE
Current thread:
- how to block ICMP tunneling? Razvan Peteanu (Jul 16)
- Re: how to block ICMP tunneling? Darren Reed (Jul 18)
- Re: how to block ICMP tunneling? Sebastian Krahmer (Jul 19)
- Re: how to block ICMP tunneling? Ted Doty (Jul 18)
- Re: how to block ICMP tunneling? Adam Shostack (Jul 19)
- BO2k : was (Re: how to block ICMP tunneling?) Jason Brvenik (Jul 20)
- <Possible follow-ups>
- RE: how to block ICMP tunneling? Jason Diesel (Jul 19)
- RE: how to block ICMP tunneling? Kevin Steves (Jul 26)
- RE: how to block ICMP tunneling? Kyle Starkey (Jul 19)
- Re: how to block ICMP tunneling? Joseph S D Yao (Jul 20)
- Re: how to block ICMP tunneling? Chris Brenton (Jul 20)
- Re: how to block ICMP tunneling? carson (Jul 21)
- Re: how to block ICMP tunneling? Geva Patz (Jul 20)
- RE: how to block ICMP tunneling? Marcus J. Ranum (Jul 19)
(Thread continues...)
- Re: how to block ICMP tunneling? Darren Reed (Jul 18)